accelerationKK [ˌæˌksɛlɚˈeʃən] ｜ /ˌæˌksɛlɚˈeɪʃən/
GEPT 中高級
C2noun
the act of increasing the speed or rate of change
The rocket's acceleration allowed it to reach escape velocity and journey into space.
加速；速率增加
C2noun
(physics) the rate at which an object changes its velocity over time; it can be positive (speeding up), negative (slowing down), or zero (constant speed)
While driving on the highway, a car suddenly accelerated as it merged into the faster lane.
（物理）加速度